malraux
First Post
So for 3e: each round has 25% for 4 rounds and is a flat distribution.. So the cumulative chance is 25, 50, 75, 100.Shroomy said:I have a question about the recharge mechanic and I'm terrible at anything more than simple arithmetic (plus its getting late!), so I'm turning to the board. In 3.5e, a dragon can breath once every 1d4 rounds, while in 4e, a dragon (at least a black dragon) can breath again if the DM rolls a 5 or 6. It seems that a 3.5e dragon has a 25% chance to breath again next round, while its 4e counterpart has a 33% chance. How does this disparity work itself out over time?
For 4e: each round has a 33% chance, but the distribution is not flat (I forget what the distribution is called). The cumulative chance is 33, 55, 70, 80, 87, ... The formula for cumulative chance that the breath weapon has recharged is 1-(2/3)^n where n is the number of rounds.